User's Manual

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7.14
7.7 SMART PATROL SEARCH
The FalconHR can be operated with or without
speedometer input. If the speedometer input is not
connected, the unit will use patented Smart Patrol Search
(SPS) software routines. This software reduces patrol
shadowing and patrol combining when coming out of
Hold mode by knowledge of how traffic radar is typically
used by the operator.
When using traffic radar in moving mode, typically the
operator will activate and deactivate the antenna
transmitter as needed to check the speed of target vehicles.
The radar may have been in Hold anywhere from several
seconds to several minutes. Each time the operator
switches from Hold to active mode, the unit must first
capture the patrol vehicle speed before any target speeds
are processed. It is this initial capturing from Hold that
radar processing is the most vulnerable to patrol
shadowing or combining.
SPS software works by storing the patrol speed when the
operator enters the Hold mode. This has two purposes; to
help track and/or reject patrol signals when returning to
active mode. If the unit is in the Hold mode for a typical
amount of time (more than one second), the patrol will be
searched first in a region around the stored patrol speed.
Example: If the patrol vehicle is traveling 65 MPH and the
operator enters Hold mode. When the operator comes out
of Hold sometime later, the SPS software will search the
region around 65 MPH first for the patrol signal. If a 20
MPH shadowing signal was present, it is not likely to be
displayed as a false patrol.